Motor-car.



No. 696,741. Patented Apr. I, 1902. J. G. MATTHEWS.

MOTOR CAR.

(Application filed Sept. 7, 1900.) (No Model.)

3 shaeis shaet I.

THE uonms wzrzns cu. FMOTO-LKTHQ, wasumsmn. a. c.

N0. 696,74l. Patented Apr. I, H902.

J. G. MATTHEWS.

MOTOR GAR.

(Application file'sept. 7, 1900.] (N o M n d e l 3 Sheets-Sheet 2.

N0. 696,74l. Patented Apr. l, I902.

J. G. MATTHEWS.

MOTOR CAR.

(Application filed Sept. 7 1900.) (No Model.) 3 Sheets-Sheet 3.

Wit esses:

Warren Era'rns PATENT @rrrcn.

JOHN G. MATTHEWS, OF THREE RIVERS, MICHIGAN, ASSIGNOR TO THE SHEFFIELDOAR COMPANY, OF THREE RIVERS, MICHIGAN.

MOTOR CAR.

SPECIFICATION forming part of Letters Patent No. 696,741, dated April 1,1902.

Application filed September 7, 1900. Serial No. 29,246. (No model.)

To ctZZ whom, it may concern.-

Be it known that I, JOHN G. Mnrrnnws, a citizen of the United States,residing at the city of Three Rivers, in the county of St. Joseph andState of Michigan, have invented certain new and useful Improvements inM0- tor-Oars, of which the following is a specification.

This invention relates to improvements in locomotive-cars, andparticularly to improve ments in theengine and driving mechanism forsuch cars, the improvements being especially adapted for lightrailway-cars,although they can be utilized with engines in otherrelations.

The objects of the invention are, first, to provide an improvedconstruction of locomotive-car especially adapted for light-weight cars5 second, to provide an improved doublepistoned engine-cylinder for usein such improved locomotive-car; third,to provide an iinproveddouble-pistoned engine-cylinder with improved couplings therefor to thedrivingwheels; fourth, to provide in an improved motor-car improvedcouplings for the driving-wheels whereby they will always be in theproper relative positions to receive impulses from the engine; fifth, toprovide in a motorcar an improved construction and arrangement of parts,whereby strain on the framework due to the action of the engine isreduced to a minimum; sixth, to provide an improved and compactstructure of engine for the purpose described.

Further objects will definitely appear in the detailed descriptiontofollow.

I accomplish these objects of my invention by the devices and meansdescribed in this specification. The invention is clearly defined, andpointed out in the claims.

The features of my invention as applied to a motor railway-car areclearly illustrated in the accompanying drawings, forming a part of thisspecification, in which- Figure 1 is a plan view of the frame of a motorhand-car with the principal parts of the engine in position. Fig. 2 is aside elevation of the structure appearing in Fig. 1, taken from theright hand of the page. Fig. 3 is a longitudinal detail sectionalelevation taken on a line corresponding to line 3 3 of Fig. 1, showingthe details of construction and position of parts. elevation of thedriving-wheels, cranks, and connecting-rods, the position of the rods onthe farther side being indicated by dotted lines, the enginecylindersbeing omitted. Fig. 5 is an enlarged detail longitudinal sectionalelevation taken on line 5 5 of Fig. 1, showing the structure of theengine-cylinder and adjacent connected parts and the means of supportingthe cylinder. Fig. 6 is an enlarged detail sectional view taken on line6 6 of Fig. 4., showing the crank and Wrist-pin connections for thecoupling-rods and pitman at that point-namely, on wheel 13. Fig. 7 is anenlarged detail sectional view taken on line 7 7 of Fig. 4, showing thedetails of the crank and wrist-pin for the connection of thecoupling-rods and pitman on the farther side of the driving-wheel atthat pointnarnely,on wheels 13 and Bthese parts being identical, butplaced at different angles. Fig.8is an enlarged detail sectional viewtaken on a line corresponding toline8 8 of Fig. 4, showing the detailsof the construction and the action of the connecting-rod and pitman atthat pointnamely, on wheel B. Fig. 9 is an enlarged detail view of themeans for actuating the electric igniter at the middle of the cylinder,the detail being enlarged and showing the relation of parts omitted fromFig. 5.

In the drawings all of the sectional views are taken looking in thedirection of the lit tle arrows at the ends of the section-lines, andsimilar letters of reference refer to similar parts throughout theseveral views.

Referringto the lettered parts of the drawings, A A A A represent thelongitudinal beams of the frame and A A A A the crossbeams.

R R represent cross protecting-timbers at each end, which are supportedby the iron bracing-brackets R R. v

To the under side of the outer side pieces A, I secure a longitudinalmetallic strip H, to which are secured the brackets R for the axle boxesand cross-rods C" C for the support of the engine-cylinder, and thesecross-rods extending through eyes H in the longitudi Fig. 4 is a detailside I nal pieces H. The brackets P fit in between the shoulders H" H onthe bars II and are secured in position by suitable bolts. Thus theaxles and their boxes and the engine-cylinders are supported in a fixedrelation to each other and are strongly braced independent of the frame.

B B are axles which extend out through the bearings at each side and areprovided with driving-wheels B B B' 13. The enginecylinders O are openat each end, and apiston D D is in each end of the cylinder. A pitman Dis pivoted to each piston D and extends outwardly from the cylinder andis con nected to a suitable wrist-pin L, so as to actuate its properdriving-wheel, there being an engine-cylinder on each side of the car.To the wrist-pin L of the wheel 13 is secured a crank M, which extendsradially across the center of the wheel B to the opposite side, the endof the crank being provided with a journal to receive the end of theconnecting-rod E. The wrist-pin L of the wheel B is extended at L intothe same plane with the end of the crank M to receive the opposite endof the coupling-bar E at that side. It will thus be seen that thewrist-pins of the driving-wheels B B, to which the pitmen are connected,are

opposite each other, so that when they are forced outwardly from theengine-cylinder they will serve to rotate the driving-wheels in the samedirection, one being above the center and the other below, and as thedriving-wheels are coupled by the bar E and rotate together they arealways kept in the same relation to their respective piston-heads withinthe engine-cylinder.

On the opposite side of the car the drivingwheels 13" and 13 areprovided with wristpins L, which occupy the same relative positions tothese wheels as the wrist-pins of the wheels B B do to those wheels.Cranks G are connected to these wrist-pins L and ex tend in a lineoblique to a radial line and to a position one-quarter way around thecircle, and to these cranks G is secured the coupling-rod E. It willthus be seen that the couplingrods E E to each side positively coupleall the driving-wheels together, so that one cannot be rotated withoutits acting upon all of the others and rotating them in the samedirection so that all the driving-wheels are always in the properposition to be acted upon by the engines at each side.

Each engine consists of a cylinder 0, which is open at each end andcontains a piston D in each end which reciprocates back and forth underthe action of any suitable explosive. The central part of the cylinderis somewhat enlarged, and in this part the explosive mixture iscompressed by the pistons D D moving toward each other at the center.

An aperture is in the upper side of the cylinder, and to this isconnected the ignition or explosion chamber. This explosion-chamber isprovided with the usual inlet and exhaust valves, althoughexhaust-valves are provided in the under side of the engine-cylinder, sothat itis only necessary to exhaust the residuary gases remaining in thecylinder at this point.

The exhaust-valves and inlet-valve are of any usual construction. Theigniter is provided with a spring, as clearly appears in Fig. 5, whichpermits a considerable motion of the igniter by the cam withoutactuating the electrode K, the details clearly appearing in Fig. 9. Thisavoids a close adjustment and permits the proper movement of the igniterin a compact space, which, of course, is desirable where the igniter islocated above or at one side of the cylinder.

The cylinder, as I have already stated, is supported by the cross rodsor bars 0 C, the rod extending through a suitable ear formed integralwith the cylinder at one end and through an ear on a collar whichembraces the cylinder at the opposite end.

The water-jacket for the cylinder 0 is bored out and slipped over theend of the cylinder and fits tightly into position on suitable collarson the cylinder turned to fit the interior of the same.

The bracket which fits the cam-shaft is preferably secured to thiswater-cylinder, as clearly appears in Fig. 5. I have not shown the pumpand attachments for supplying a current of water to this water-jacket,as they may be ofv any desired or usual construction.

I have thus described all of the parts of my improved motor'railway-carin their preferred form. I am aware that they can be greatly varied intheir form and arrangement without departing from my invention. I haveshown a convenient and practical construction of double-piston cylinder,but am aware that its form could be greatly varied and still serve itspurpose very satisfactorily in this connection. The metallic plates onthe under side of the frame serve to bind all the operating partstogether and are very useful to that end and possess great merit.However, the parts might be satisfactorily supported by increasing thestrength of the frame.

While I have shown an engine at each side, a single engine might beutilized to drive the car; but the expense of the additional cylinder isvery slight, and by providing two cylinders a great advantage is securedin explosive-engines on account of the facility with which the smallerengine can be kept cool and in working order. I have shown the couplingson the driving-wheels on opposite sides of the car. The same couplingsmight be ap: plied all on one side; but this would of course increasethe complexity of the structure. I mention these modifications merely toindicate the scope of the invention and the utilities of the difierentparts and special combinations when independently considered.

Many other modifications than those Ihave mentioned would be obvious tothe skilled mechanic and it would be idle to attempt to enumerate themall here.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a motor-car the combination of the framework; metallic bars orplates H under the framework and secured thereto, provided with seatsfor the boxing of the driving-gear and with holes for thesupporting-rods for the cylinder; axles B, B, with driving-wheels B, B,B, 13, secured thereto; cranks or wristpins on said driving-wheels inthe same relative positions at each side, but arranged at an angle toeach otheron opposite sides; parallel coupling-rods E, E, coupling thewheels at each side together by means of said cranks and wrist-pins; anengine-cylinder to each side of said frame supported on the rods 0extending transversely across the frame through the holes in the plateH, said cylinder being open from endto end piston-heads D, D, in theends of said cylinders adapted to reciprocate to and from the centerthereof; pitmen D extending out at opposite ends of said cylinders andconnecting said pistons to oppositely-arranged wrist-pins or cranks onthe driving-wheel, all coacting substantially for the purpose described.

2. In a motor-car the combination of the framework; metallic bars orplates II under the framework and secured thereto, provided with seatsfor the boxing of the driving-gear and with holes for thesupporting-rods for the cylinder; axles 13,13, with driving-wheels B, B,13, 13, secured thereto; cranks or wristpins on saiddriving-Wheels inthe same rela tive positions at each side, but arranged at an angle toeach other on opposite sides; parallel coupling-rods E, E, coupling thewheels at each side together by means of said cranks and wrist-pins; anengine-cylinder supported on the rods 0 extending transversely acrossthe frame through the holes in the plate H, said cylinder being openfrom end to end; piston-heads D, D, in the ends of said cylinder adaptedto reciprocate toand from the center thereof; pitmen D extending out atopposite ends of said cylinder and connecting said pistons tooppositely-arranged cranks on the driving-wheel all coacting for thepurpose specified.

3. In a motor-car the combination of the framework; axles B, B, withdriving-wheels B, B, B, 13, secured thereto; cranks or wrist-pins onsaid driving-wheels in the same relative positions at each side, butarranged at an angle to each other on opposite sides; parallel couplingrods E, E coupling the wheels at each side together by means of saidcranks and wrist-pins; an engine-cylinder open from end to end;piston-headD, D, in

the ends of said cylinder adapted to reciprocate to and from the centerthereof; pitmen D extending out at oppositeends of said cylinder andconnecting said pistons to oppositely-arranged wrist-pins or cranks allcoacting forthe purpose specified.

4. In a motor-car, the combination ofthe framework; axles 15,13, withdriving-wheels B, B, B, 13 secured thereto; coupling means for saidaxles and drivingwheels; an engine-cylinder open from end to end;piston-heads D, D, in the ends of said cylinder adapted to reciprocateto and from the center thereof pitmen D extending out at opposite endsof said cylinder and connecting said pistons to oppositely-arrangedwrist-pins or cranks, all coacting'for the purposespecified.

5. In a motor-car the combination of the framework; driving-wheelssecured to suitable axles thereunder; parallel coupling-rods couplingsaid driving-wheels and axles together, said coupling-rods beingconnected in different relative positions to said wheel; an

engine-cylinder open at bothends; pistons toward each end ofsaidengine-cylinder and adapted to reciprocate to and from the centerthereof; and couplings from said pistons to the drivin g-wheels arrangedto drive the front and rear wheels in the same direction on the outwardstroke of the pistons, coacting for the purpose specified.

6. In a motor-car, the combination of the framework; driving-wheelssecured to suitable axles thereunder; coupling means between said axlesand driving-wheels; an engine-cylinder open at both ends; pistons towardeach end of said engine-cylinder and adapted to reciprocate to and fromthe center thereof; and couplings from said pistons to thedriving-wheels arranged to drive the front and rear wheels in the samedirection on the,

outward stroke of the pistons, coacting for the purpose specified.

'7. In a motoacar, the combination of the framework; bars of metalbeneath the same;

boxings secured to said bars carrying the axles and driving mechanism;and an enginecylinder suspended from said bars with oppositely-actingpistons therein coupled to said driving-geaigand arranged to actsimultaneously in opposite directions, whereby straining of the frame isavoided, as specified.

In witness whereof I have hereunto set my hand and seal in the presenceof twowitnesses.

JOHN G. MATTHEWS. [n s] Witnesses:

F. N. WHrrEsELL, W. J. PRIDMORE.

IIO

